question about raw video and card speed for 600d

[lifeartpixels]

hi all,

ive been recording HDR for quite some time with ML, now wanna see if i can get into RAW recording. Some of these question may be beginner/dumb, my apologies.

- I have a 30 mbps card, 16gb. Would this card be sufficient to record in raw? the recording resolution should be big enough to be able to upscale to 1280x720.

- How long would i be able to record on a 16GB card, on the highest resolution possible with the combination of a 600D and a 30mbps card?

- On youtube i see RAW-HDR footage as well, are they just yapping or is it really possible to shoot in Raw And HDR at the same time? (also with 600D?)

- How is the noise performance when you compare RAW video to the standard HDR footage from ML? This is the whole reason why i would like to get into RAW video, i shoot a lot of indoor HDR video and the noise is killing me, especially when i am forced to use iso1600 due to poor lighting.


Hope you can clear this up for me, thanks!

[Olivant]

30mbps won't cut it. I have been recording raw at full HD and Ml says that requires a write speed around 90 mbps. You could go for a lower resolution though....

CF cards have come down in price recently. I got a 128GB Lexar udma 7 card (160 mbps) for about 150 the other day.

And yes you can record raw hdr. I am testing now. The problem i am running into is getting avisynth to accept the raw video. I need to figure out the specs of what to covert it to to work with the interframe script

[Walter Schulz]

And here we go again: SD-card interface in 600D is limited to 25 MByte/s transfer speed. You will be rather lucky to get about 20 MByte/s writing during recording.
Use rbrune's calculator to compute numbers for continuous recording: http://rbrune.github.io/mlraw/

And visit www.cameramemoryspeed.com to learn about real world card speeds. Manufacturers use transfer speed numbers for *read* most of the time. And it's *write* you're looking for ...

@Olivant: You will have a hard time trying to insert a CF-card into 600D. And answering posts 18 months old ...

[PaulHarwood856]

Hey Olivant,

     If you're looking for cheap Lexar 128 gb CF cards, check Lens Authority. Cosmetics aren't ggreat, but cards function flawlessly. Bought two cards for $128.00